AFP (alpha-fetoprotein)

Alpha-fetoprotein (AFP) is a protein produced primarily by the liver and yolk sac of a developing fetus. In adults, AFP levels are typically low, but it can rise in certain conditions, making it a useful marker in medicine. High AFP levels may indicate liver diseases, such as hepatitis or liver cancer, or germ cell tumors. In pregnant women, AFP is measured during prenatal testing to assess fetal health, as abnormal levels can signal potential developmental issues. Overall, AFP serves as an important indicator in both cancer diagnosis and prenatal care.